package it.yuzuojian.com.service;

import it.yuzuojian.com.domain.Singer;
import org.springframework.stereotype.Service;

import java.sql.Blob;
import java.util.List;

public interface SingerService {
    public Boolean insert(Singer singer);
    public Boolean update(Singer singer);
    public Boolean delete(Integer id);
    public Singer selectById(Integer id);
    public List<Singer> selectAll();
    public List<Singer> selectByName(String name);
    public List<Singer> selectBySex(Integer sex);
}
